DE2022460A1 - Flexible aluminium tube - Google Patents

Flexible aluminium tube

Info

Publication number
DE2022460A1
DE2022460A1 DE19702022460 DE2022460A DE2022460A1 DE 2022460 A1 DE2022460 A1 DE 2022460A1 DE 19702022460 DE19702022460 DE 19702022460 DE 2022460 A DE2022460 A DE 2022460A DE 2022460 A1 DE2022460 A1 DE 2022460A1
Authority
DE
Germany
Prior art keywords
pipe
welded
tube
flexible
protective
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DE19702022460
Other languages
German (de)
Inventor
Juergen Gladenbeck
Joachim Dr Rer Nat Dipl Lorenz
Heinz Dipl-Ing Scheuten
Oswald Dipl-Ing Schwerdtfeder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Felten and Guilleaume Kabelwerke GmbH
Original Assignee
Felten and Guilleaume Kabelwerke GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Felten and Guilleaume Kabelwerke GmbH filed Critical Felten and Guilleaume Kabelwerke GmbH
Priority to DE19702022460 priority Critical patent/DE2022460A1/en
Priority to ES1970200938U priority patent/ES200938Y/en
Priority to GB1297293D priority patent/GB1297293A/en
Priority to CH1783070A priority patent/CH523458A/en
Priority to NL7101788A priority patent/NL7101788A/xx
Priority to BE762935A priority patent/BE762935A/en
Priority to FR7105581A priority patent/FR2078786A5/fr
Publication of DE2022460A1 publication Critical patent/DE2022460A1/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
    • F16L58/04—Coatings characterised by the materials used
    • F16L58/10—Coatings characterised by the materials used by rubber or plastics
    • F16L58/1054—Coatings characterised by the materials used by rubber or plastics the coating being placed outside the pipe
    • F16L58/1063—Coatings characterised by the materials used by rubber or plastics the coating being placed outside the pipe the coating being a sheet wrapped around the pipe
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/26—Lining or sheathing of internal surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
    • F16L58/04—Coatings characterised by the materials used
    • F16L58/10—Coatings characterised by the materials used by rubber or plastics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/02—Rigid pipes of metal

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Laminated Bodies (AREA)

Abstract

Flexible aluminium tube is seamless, and has a flexible, sealed coating of Al chromate or Al Cr phosphate formed from the Al of the tube, or of a thermoplastics material such as polyethylene, or an elastic material, and an outer protective cover. Used esp. for water pipes. The pipes are protected externally against corrosion and internally against corrosive fluids.

Description

Biegsames Rohr, insbesondere Wasserleitungsrohr Zusatz zu Patent ... (Patentanmeldung P 20 17 433.8) Nach dem Hauptpatent ist ein biegsames Rohr vorgeschlagen worden. das zur Fortleitung von Gasen und Flussigkeiten dienen kann und insbesondere als Wasserleitungsrohr bestimmt ist. Das Rohr ist nach dem Hauptpatent ein nahtloses, d.h. im allgemeinen stranggepreßtes Aluminiumrohr und besitzt an seiner Innenfläche eine dichte und biegsame. gegen aggressive Medien schützende Schicht Nach der Erfindung ist das genannte Rohr ein nachtgeschweißtes Aluminiumrohr. Ein solches Rohr hat, da es aus maßhaltigem Blech oder Band gefertigt sein kann, im allgemeinen eine enger tolerierte Wandstärke als ein stranggepreßtes Rohr. Das Schweissen von Rohren ist mit erheblich größerer Geschwindigkeit möglich als das Pressen. Außerdem sind nahtgeschweißte Rohre in beliebigen Längen, Wandstärken und Durchmesser herstellbar.Flexible pipe, especially water pipe Addition to patent ... (Patent application P 20 17 433.8) According to the main patent, a flexible tube is proposed been. that can serve to carry gases and liquids, and in particular is intended as a water pipe. According to the main patent, the pipe is a seamless, i.e., generally extruded aluminum tube and has on its inner surface a dense and flexible one. Protective layer against aggressive media According to the invention the said pipe is a night-welded aluminum pipe. Has such a pipe since it can be made of dimensionally stable sheet metal or strip, generally a narrow one tolerated Wall thickness than an extruded pipe. The welding of pipes is significant higher speed possible than pressing. In addition, they are seam-welded Pipes can be produced in any length, wall thickness and diameter.

Das Rohr nach der Erfindung kann in üblicher Weise stumpf geschweißt sein. Die Schweißnaht kann länge- oder schraubenlinienförmig verlaufen. Jedoch hat ein überlappend geschweißtes Rohr günstigere Festigkeitseigenschaften. Vorteilhaft kann das Rohr aus einer Aluminiumlegierung hergestellt sein. Insbesondere können hierfür Aluminiumlegierungen höherer mechanischer Festigkeit verwendet sein, die sich durch Strangpressen schlecht verarbeiten lassen. Zur Erzielung einer besseren Biegsamkeit kann das Rohr gewellt sein.The pipe according to the invention can be butt welded in the usual way be. The weld seam can run lengthwise or helically. However has an overlapping welded pipe has more favorable strength properties. Advantageous the tube can be made of an aluminum alloy. In particular, can be used for this purpose aluminum alloys of higher mechanical strength, the are difficult to process by extrusion. To achieve a better Flexibility, the pipe can be corrugated.

Soll das Rohr an seiner Innenfläche eine schlauchförmige Schutzschicht aus thermoplastischem oder aus gummielastischem bzw.Should the pipe have a tubular protective layer on its inner surface made of thermoplastic or rubber-elastic or

thermoelastischem Stoff haben, beispielsweise aus Polyäthylen oder aus Gummi oder vernetztem Kunststoff, so empfiehlt es sicht über einem hohlen Schutzrohrstutzen, in den der vorgefertigte Schlauch aus dem thermoplastischen oder thermoelastischen Stoff einläuft, das Rohr aus Aluminium oder Aluminiumlegierung zu nächst mit größerer lichter Weite zu schweißen und alsdann durch Ziehen, Walzen oder Wellen zum dichten anliegen an den Schlauch zu verengen.have thermoelastic material, for example made of polyethylene or made of rubber or cross-linked plastic, it is recommended to use a hollow protective pipe socket, in which the prefabricated hose from the thermoplastic or thermoelastic If the substance runs in, the tube made of aluminum or aluminum alloy is initially larger to be welded in the clear width and then to seal by drawing, rolling or shafting to narrow the hose.

Um die Haftung der schützenden Schicht an der metallischen Innenfläche des Rohres zu verbessern, kann diese schützende Schicht vorteilhaft völlig oder mindestens an ihrer dem Metallrohr benachbarten Fläche aus einem Copolymeren, beispielsweise einem Äthylen-Vinylacetat-Copolymeren oder einem Ätylen-Vinylacrylat-Copolymeren, bestehen. Eine gute Haftung dieser Schicht wird vorteilhaft durch Erwärmung erreicht.About the adhesion of the protective layer to the metallic inner surface To improve the pipe, this protective layer can be entirely beneficial or beneficial at least on its surface adjacent to the metal tube made of a copolymer, for example an ethylene-vinyl acetate copolymer or an ethylene-vinyl acrylate copolymer, exist. Good adhesion of this layer is advantageously achieved by heating.

Der Korrosionsschutzmantel auf der AußenRlKehe des Rohres kann im Übrigen vorteilhaft aus einem der fÜr die Schutzschicht auf der Innenflche des Rohres engegebenen Stoffe bestehen.The corrosion protection coating on the outside of the pipe can be Otherwise advantageous from one of the for the protective layer on the inner surface of the pipe given substances exist.

Wenn das Rohr an seiner Innenwand oder innen und außen einen aus dem metallischen Bandwerkstoff durch chemische Umsetzung gebildeten Schutzilberzug aufweisen soll, so kann es vorteilhaft aus einem Metallband geschweißt sein, das mindestens an seiner die Rohrinnenwand bildenden Fläche bereits den genannten Schutzilberzug besitzt. An der Schweißnaht wird das Rohr dann vorteilhaft noch nachträglich mit einem solchen Sehutz-Überzug versehen.If the pipe on its inner wall or inside and outside one of the metallic strip material have a protective silver coating formed by chemical reaction should, it can advantageously be welded from a metal strip that at least already the mentioned protective silver coating on its surface forming the inner wall of the pipe owns. At the weld seam, the pipe is then advantageously also added later provided such a protective coating.

Die Zeichnung zeigt schematisch ein Rohr nach der Erfindung in Fig. 1 in einer Ansicht und stufenweise abgesetzt, in Fig. 2 im Querschnitt, während Fig. 3 eine weitere Ausfilhrungsform im Querschnitt darstellt.The drawing shows schematically a pipe according to the invention in Fig. 1 in a view and stepped down, in Fig. 2 in cross section, while Fig. 3 shows a further embodiment in cross section.

Nach den Fig. 1 und 2 ist das Rohr 1 aus Aluminiumband stumpf geschweißt und besitzt an seiner Innenfläche eine schlauchförmige Schicht 2 aus Polyäthylen. Außen ist ein Korrosionsschutzmantel 3 aus Polyvinylchlorid auf das Rohr 1 aufgebracht.According to FIGS. 1 and 2, the tube 1 is butt welded from aluminum strip and has a tubular layer 2 made of polyethylene on its inner surface. A corrosion protection jacket 3 made of polyvinyl chloride is applied to the pipe 1 on the outside.

Die Schweißnaht des Rohres 1 ist mit 4 bezeichnet.The weld seam of the pipe 1 is denoted by 4.

Gemäß Fig. 3 hat das Rohr 1 aus Aluminiumband eine Überlappte Schweißnaht 5 und ist an seiner Innen- und Außenfläche mit einer aus seinem metallischen Werkstoff durch chemische Umsetzung gebildeten Schutzschicht 6 versehen.According to FIG. 3, the tube 1 made of aluminum strip has an overlapped weld seam 5 and is on its inner and outer surface with one of its metallic material Protective layer 6 formed by chemical reaction is provided.

Claims (6)

Patentansprüche:Patent claims: 1. Biegsames Aluminiumrohr, insbesondere Wasserleitungsrohr, nach Patent ... (Patentanmeidung P 20 17 433.8), d a d u r c h g e k e n n z e 5 a h n e t, daß es nahtge-schweißt ist.1. Flexible aluminum pipe, especially water pipe, according to Patent ... (patent application P 20 17 433.8), d a d u r c h e k e n n z e 5 a h n e t that it is seam-welded. 2. Rohr nach Anspruch 1. d a d u r c h g e k e n n z e i c hn e t, daß es überlappend geschweißt ist.2. Pipe according to claim 1. d a d u r c h g e k e n n z e i c hn e t, that it is welded with an overlap. 3. Rohr nach Anspruch 1 oder 2, d a d u r c h g e k e n nz e i c h n e t, daß es aus Band aus Aluminiumlegierung geschweißt ist.3. Tube according to claim 1 or 2, d a d u r c h g e k e n nz e i c h Not that it is welded from aluminum alloy tape. 4. Rohr nach einem der Ansprüche 1 bis 3, d a d u r c h g e k e n n z e i c h n e t, daß die schÜtzende Schicht an der Innenfläche des Rohres aus einem Copolymeren besteht.4. Tube according to one of claims 1 to 3, d a d u r c h g e k e n Note that the protective layer is made on the inner surface of the pipe a copolymer. 5. Rohr nach einem der AnsprUche 1 bis 3i d a d u r c h g e k e n n z e 1 c h n e t, daß es aus einem Metallband geschweißt ist, das mindestens an seiner die Rohrinnenwand bildenden Fläche einen aus dem metallischen Bandwerkstoff durch chemische Umsetzung gebildeten Schutz-Überzug besitzt, und daß auch die Schweißnaht mindestens an der Rohrinnenfläche einen solchen Schutzilberzug aufweist.5. Pipe according to one of claims 1 to 3i d a d u r c h g e k e n n z e 1 c h n e t that it is welded from a metal strip that is at least an its surface forming the inner pipe wall is made from the metallic strip material Has a protective coating formed by chemical reaction, and that also the weld seam has such a protective silver coating at least on the inner surface of the pipe. 6. Rohr nach einem der AnsprUche 1 bis 5, d z d u r c h g e k e n n z e i e h n e t, daß es gewellt ist.6. Pipe according to one of claims 1 to 5, d z d u r c h g e k e n I would like to point out that it is wavy.
DE19702022460 1970-04-11 1970-05-08 Flexible aluminium tube Pending DE2022460A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE19702022460 DE2022460A1 (en) 1970-05-08 1970-05-08 Flexible aluminium tube
ES1970200938U ES200938Y (en) 1970-04-11 1970-10-27 A FLEXIBLE ALUMINUM TUBE.
GB1297293D GB1297293A (en) 1970-04-11 1970-11-25
CH1783070A CH523458A (en) 1970-04-11 1970-12-02 Flexible aluminum pipe, especially water pipe
NL7101788A NL7101788A (en) 1970-04-11 1971-02-11
BE762935A BE762935A (en) 1970-04-11 1971-02-15 FLEXIBLE TUBE, MORE PARTICULARLY TUBE FOR WATER LINE
FR7105581A FR2078786A5 (en) 1970-04-11 1971-02-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702022460 DE2022460A1 (en) 1970-05-08 1970-05-08 Flexible aluminium tube

Publications (1)

Publication Number Publication Date
DE2022460A1 true DE2022460A1 (en) 1971-12-02

Family

ID=5770545

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19702022460 Pending DE2022460A1 (en) 1970-04-11 1970-05-08 Flexible aluminium tube

Country Status (1)

Country Link
DE (1) DE2022460A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6293311B1 (en) 1998-05-22 2001-09-25 Pmd Holdings Corp. Multilayer composite pipe fluid conduit system using multilayer composite pipe and method of making the composite

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6293311B1 (en) 1998-05-22 2001-09-25 Pmd Holdings Corp. Multilayer composite pipe fluid conduit system using multilayer composite pipe and method of making the composite

Similar Documents

Publication Publication Date Title
DE1704117B2 (en) Process for producing gas- and liquid-tight tubes
DE2923544C2 (en) Process for the production of a composite pipe
DE1800262A1 (en) Method of manufacturing a conduit pipe
DE2058379A1 (en) Process for the production of a tubular structure
DE2045973A1 (en) Tubular structure
DE1960932A1 (en) Process for the production of heat and sound insulated line pipes
DE4018753A1 (en) Multilayer tube - has protective layer round leak-proof tube sealed in place by clinging material
EP0046134B1 (en) Method for the manufacture of multiple layered tubes protected against corrosion by an inner and outer plastics layer
DE2022460A1 (en) Flexible aluminium tube
DE123151C (en)
DE102006057199A1 (en) Composite tube, e.g. for connecting components in refrigerating/solar-power plants, has two plastic layers forming inner and outer layers each including a metal layer with an intermediate joint formed by a layer of bonding agent
DE19925097A1 (en) Composite pipe manufacturing process to reduce water and oxygen permeability uses an inner layer of PVDC and an outer layer of another plastic
DE19536698C1 (en) Making composite tube of seam welded aluminium with memory-effect plastic inner lining
AT391749B (en) FLEXIBLE PIPE PIPE FOR CONDUCTING LIQUID OR GASEOUS MEDIA
DE2017433A1 (en) Flexible aluminium tube
DE2141475A1 (en) PROCESS FOR MANUFACTURING THERMAL AND SOUND INSULATED PIPES
DE4235825C1 (en) Fiber-reinforced plastic pipe
DE3342023A1 (en) Process for producing a plastics tube with permeation barrier
DE1914344A1 (en) Process for the continuous production of metal pipes coated with plastic on the inside
DE102004028020A1 (en) Multi-walled pipe and process for its production
DE2010860A1 (en) PIPE MAIL SYSTEM
DE724677C (en) Pressure-resistant telecommunications submarine cable
DE2108895A1 (en) Process for the production of a tubular metallic structure with a thin wall thickness
DE1033973B (en) Sound and heat insulating elastic pipeline for ventilation systems, especially in motor vehicles, as well as processes for their production
DE2431802A1 (en) SEMI-RIGID WAVE GUIDE AND PROCESS FOR ITS MANUFACTURING